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  • DS92LV241x 5 to 50 MHz 24-Bit Channel Link II Serializer And Deserializer

    • SNLS302E May   2010  – February 2015 DS92LV2411 , DS92LV2412

      PRODUCTION DATA.  

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  • DS92LV241x 5 to 50 MHz 24-Bit Channel Link II Serializer And Deserializer
  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1. 3.1 Typical Application Schematic
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1  Absolute Maximum Ratings
    2. 6.2  ESD Ratings
    3. 6.3  Recommended Operating Conditions
    4. 6.4  Thermal Information
    5. 6.5  Serializer DC Electrical Characteristics
    6. 6.6  Deserializer DC Electrical Characteristics
    7. 6.7  DC and AC Serial Control Bus Characteristics
    8. 6.8  Recommended Timing For The Serial Control Bus
    9. 6.9  Recommended Serializer Timing For CLKIN
    10. 6.10 Serializer Switching Characteristics
    11. 6.11 Deserializer Switching Characteristics
    12. 6.12 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagrams
    3. 7.3 Feature Description
      1. 7.3.1 Serializer Functional Description
        1. 7.3.1.1 EMI Reduction Features
          1. 7.3.1.1.1 Data Randomization and Scrambling
          2. 7.3.1.1.2 Ser — Spread Spectrum Compatibility
        2. 7.3.1.2 Integrated Signal Conditioning Features — Ser
          1. 7.3.1.2.1 Ser — VOD Select (VODSEL)
          2. 7.3.1.2.2 Ser — De-Emphasis (De-Emph)
        3. 7.3.1.3 Power Saving Features
          1. 7.3.1.3.1 Ser — Power Down Feature (PDB)
          2. 7.3.1.3.2 Ser — Stop Clock Feature
          3. 7.3.1.3.3 1.8 V or 3.3 V VDDIO Operation
        4. 7.3.1.4 Ser — Pixel Clock Edge Select (RFB)
        5. 7.3.1.5 Optional Serial Bus Control
        6. 7.3.1.6 Optional BIST Mode
      2. 7.3.2 Deserializer Functional Description
        1. 7.3.2.1  Integrated Signal Conditioning Features — Des
          1. 7.3.2.1.1 Des — Input Equalizer Gain (Eq)
        2. 7.3.2.2  EMI Reduction Features
          1. 7.3.2.2.1 Des — Output Slew Rate Select (OS_CLKOUT/OS_DATA)
          2. 7.3.2.2.2 Des — Common Mode Filter Pin (CMF) — Optional
          3. 7.3.2.2.3 Des — SSCG Generation — Optional
          4. 7.3.2.2.4 1.8 V or 3.3 V VDDIO Operation
        3. 7.3.2.3  Power Saving Features
          1. 7.3.2.3.1 Des — Powerdown Feature (PDB)
          2. 7.3.2.3.2 Des — Stop Stream Sleep Feature
        4. 7.3.2.4  Des — Clock-Data Recovery Status Flag (Lock) And Output State Select (OSS_SEL)
        5. 7.3.2.5  Des — Oscillator Output — Optional
        6. 7.3.2.6  Des — OP_LOW — Optional
        7. 7.3.2.7  Des — Clock Edge Select (RFB)
        8. 7.3.2.8  Des — Control Signal Filter — Optional
        9. 7.3.2.9  Des — SSCG Low Frequency Optimization (Lf_mode)
        10. 7.3.2.10 Des — Strap Input Pins
      3. 7.3.3 Built In Self Test (BIST)
        1. 7.3.3.1 Sample BIST Sequence
        2. 7.3.3.2 BER Calculations
    4. 7.4 Device Functional Modes
      1. 7.4.1 Data Transfer
      2. 7.4.2 Serializer and Deserializer Operating Modes and Reverse Compatibility (Config[1:0])
      3. 7.4.3 Video Control Signal Filter — Serializer and Deserializer
    5. 7.5 Programming
      1. 7.5.1 Optional Serial Bus Control
    6. 7.6 Register Maps
  8. 8 Applications and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Applications
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 Typical Application Connection
        2. 8.2.2.2 Power Up Requirements and PDB Pin
        3. 8.2.2.3 Transmission Media
        4. 8.2.2.4 Live Link Insertion
        5. 8.2.2.5 Serial Interconnect Guidelines
      3. 8.2.3 Application Curves
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Related Links
    2. 11.2 Trademarks
    3. 11.3 Electrostatic Discharge Caution
    4. 11.4 Glossary
  12. 12Mechanical, Packaging, and Orderable Information
  13. IMPORTANT NOTICE

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DATA SHEET

DS92LV241x 5 to 50 MHz 24-Bit Channel Link II Serializer And Deserializer

1 Features

  • 24-Bit Data, 3–Bit Control, 5 to 50 MHz Clock
  • Application Payloads up to 1.2 Gbps
  • AC Coupled Interconnects: STP up to 10 m or Coax 20+ m
  • 1.8 V or 3.3 V Compatible LVCMOS I/O Interface
  • Integrated Terminations on Ser and Des
  • AT-SPEED BIST Mode and Reporting Pin
  • Configurable by Pins or I2C Compatible Serial Control Bus
  • Power Down Mode Minimizes Power Dissipation
  • >8 kV HBM ESD Rating
  • SERIALIZER — DS92LV2411
    • Supports Spread Spectrum Clocking (SSC) on Inputs
    • Data Scrambler for Reduced EMI
    • DC-Balance Encoder for AC Coupling
    • Selectable Output VOD and Adjustable De-emphasis
  • DESERIALIZER — DS92LV2412
    • Random Data Lock; no Reference Clock Required
    • Adjustable Input Receiver Equalization
    • LOCK (Real Time Link Status) Reporting Pin
    • Selectable Spread Spectrum Clock Generation (SSCG) and Output Slew Rate Control (OS) to Reduce EMI

2 Applications

  • Embedded Video and Display
  • Medical Imaging
  • Factory Automation
  • Office Automation — Printer, Scanner
  • Security and Video Surveillance
  • General Purpose Data Communication

3 Description

The DS92LV2411 (Serializer) and DS92LV2412 (Deserializer) chipset translates a parallel 24–bit LVCMOS data interface into a single high-speed CML serial interface with embedded clock information. This single serial stream eliminates skew issues between clock and data, reduces connector size and interconnect cost for transferring a 24-bit, or less, bus over FR-4 printed circuit board backplanes, differential or coax cables.

In addition to the 24-bit data bus interface, the DS92LV2411/12 also features a 3-bit control bus for slow speed signals. This allows implementing video and display applications with up to 24–bits per pixel (RGB888).

Programmable transmit de-emphasis, receive equalization, on-chip scrambling and DC balancing enables long distance transmission over lossy cables and backplanes. The DS92LV2412 automatically locks to incoming data without an external reference clock or special sync patterns, providing easy “plug-and-go” or “hot plug” operation. EMI is minimized by the use of low voltage differential signaling, receiver drive strength control, and spread spectrum clocking capability.

The DS92LV2411/12 chipset is programmable though an I2C interface as well as through Pins. A built-in AT-SPEED BIST feature validates link integrity and may be used for system diagnostics.

The DS92LV2411 is offered in a 48-Pin WQFN and the DS92LV2412 is offered in a 60-Pin WQFN package. Both devices operate over the full industrial temperature range of -40°C to +85°C.

Device Information

PART NUMBER PACKAGE BODY SIZE (NOM)
DS92LV2411 WQFN (48) 7.00 mm × 7.00 mm
DS92LV2412 WQFN (60) 9.00 mm × 9.00 mm

3.1 Typical Application Schematic

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4 Revision History

Changes from D Revision (April 2014) to E Revision

  • Changed "Terminal" terminology back to "Pin" Go
  • Added statement about checkerboard pattern from deserializer data output when in BIST mode Go
  • Added note that BISTEN pin must be high and REG = 0 to use BIST mode. Go
  • Changed deserializer Reg 0x02[6] definition to match correct OSS_SEL behaviorGo

Changes from C Revision (April 2013) to D Revision

  • Added Handling Ratings and Thermal Characteristics and updated datasheet to new layout. Go
  • Changed Serializer Supply current power down test condition from VDDIO from 13.6V to 3.6V Go
  • Added DC to "Deserializer Electrical Characteristics"Go
  • Changed typical value to 36mA instead of 37mA Go
  • Changed Test condition of VOUT for determining IOZGo
  • Added max value for VIL when using 1.8V I/O LVCMOS Go
  • Changed IOL from 3mA to 1.25mA Go
  • Changed parentheses location of UI equation for clarification Go
  • Added characteristic graphics for serializer CML driver output and deserializer LVCMOS clock output Go
  • Added applications graphics of the serializer output with and without de-emphasis Go
  • Added layout example and stencil diagram graphicsGo

Changes from B Revision (April 2013) to C Revision

  • Changed layout of National Data Sheet to TI formatGo

 
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